What happens when a host is evacuated in a remediation process?

When a host is evacuated as part of the remediation process, all virtual machines (VMs) are migrated off it. This is a critical step to ensure that resources are not disrupted during maintenance or upgrades. When VMs are migrated, vSphere utilizes capabilities like vMotion to seamlessly transfer running workloads to other hosts in the cluster, allowing for minimal disruption to services.

By evacuating the host in this manner, administrators can safely perform necessary updates or repairs without affecting the availability of the applications running on those VMs. This migration process is essential for maintaining a high level of uptime and reliability in the virtualized environment.

While hosts do enter maintenance mode after the evacuation (which is a step in the overall remediation process), the direct consequence of the evacuation is the migration of VMs. Other answers may describe aspects of the host's state or process, but do not address the primary action occurring during evacuation, which is the migration of all VMs.